2009
DOI: 10.1590/s0100-06832009000500003
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Abstract: SUMMARYSoil water properties are related to crop growth and environmental aspects and are influenced by the degree of soil compaction. The objective of this study was to determine the water infiltration and hydraulic conductivity of saturated soil under field conditions in terms of the compaction degree of two Oxisols under a no-tillage (NT). Two commercial fields were studied in the state of Rio Grande do Sul, Brazil: one a Haplortox after 14 years under NT; the other a Hapludox after seven years under NT. Ma… Show more

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Cited by 29 publications
(19 citation statements)
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“…Uma possível explicação é a de que com apenas uma passada do rolo compactador não tenha proporcionado pressão suficiente para deformação dos bioporos, quando comparado aos tratamentos com maiores freqüência de tráfego (3P e 5P). SILVA et al (2009), trabalhando em dois Latossolos sob diferentes estados de compactação, observaram que o estado de compactação não interferiu na taxa de infiltração inicial e estável, nem na lâmina de água infiltrada acumulada de cada solo devido à presença de bioporos.…”
Section: Resultsunclassified
“…Uma possível explicação é a de que com apenas uma passada do rolo compactador não tenha proporcionado pressão suficiente para deformação dos bioporos, quando comparado aos tratamentos com maiores freqüência de tráfego (3P e 5P). SILVA et al (2009), trabalhando em dois Latossolos sob diferentes estados de compactação, observaram que o estado de compactação não interferiu na taxa de infiltração inicial e estável, nem na lâmina de água infiltrada acumulada de cada solo devido à presença de bioporos.…”
Section: Resultsunclassified
“…This effect is directly associated with the reduction in the availability of water in the soil, soil aeration, and nutrients to plants, along with the increase of soil resistance to root growth (LETEY, 1985;MEDEIROS et al, 2010). Among various methods to determine the state of soil compaction and physical quality, the evaluation of soil penetration resistance (SPR) has been commonly used in experimental studies, not only related to precision agriculture (SILVA et al, 2004;BOTTEGA et al, 2011;CHERUBIN et al, 2011;DALCHIAVON et al, 2011;GIRARDELLO et al, 2011) but also to assessments of management conditions of agricultural areas (GOEDERT et al, 2002;NEIRO et al, 2003;FREDDI et al, 2007;SILVA et al, 2009;CALONEGO & ROSOLEM, 2011;OTTO et al, 2011) and forests (SEIXAS & SOUZA, 2007;SINNETT et al, 2008).…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, compacted soil layers may not be detected if PR is assessed under high soil water contents (VAZ et al, 2011). Moreover, PR depends on other attributes such as the soil type (SILVA et al, 2009), organic matter content (TAVARES FILHO et al, 2012), soil texture (VAZ et al, 2011), soil compressibility (SILVA et al, 2002 and the metal-soil friction (DEXTER et al, 2007;SUN et al, 2012).…”
Section: Introductionmentioning
confidence: 99%